:root {
  --primary: #FF6B35;
  --primary-dark: #E55A2B;
  --success: #2ECC71;
  --warning: #F1C40F;
  --danger: #E74C3C;
  --bg: #0F0F0F;
  --bg-card: #1A1A1A;
  --bg-card-hover: #222222;
  --text: #FFFFFF;
  --text-muted: #888888;
  --border: #333333;
  --safe-top: env(safe-area-inset-top);
  --safe-bottom: env(safe-area-inset-bottom);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; overflow-x: hidden; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 20px;
  padding-top: calc(20px + var(--safe-top));
  padding-bottom: calc(100px + var(--safe-bottom));
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 600px; margin: 0 auto; }

.header { text-align: center; margin-bottom: 30px; padding: 20px 0; position: relative; }
.header h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), #FFB347);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}
.header p { color: var(--text-muted); font-size: 0.9rem; }

.settings-btn {
  position: absolute;
  top: 20px;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.settings-btn:active { background: var(--bg-card-hover); border-color: var(--primary); }

.tab-nav {
  display: flex;
  background: var(--bg-card);
  border-radius: 16px;
  padding: 5px;
  margin-bottom: 25px;
  border: 1px solid var(--border);
}
.tab-btn {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 12px;
  font-family: 'Noto Sans JP', sans-serif;
}
.tab-btn.active { background: var(--primary); color: white; }
.tab-content { display: none; }
.tab-content.active { display: block; }

.date-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-bottom: 30px;
  background: var(--bg-card);
  padding: 15px;
  border-radius: 16px;
  border: 1px solid var(--border);
}
.date-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.date-btn:active { background: var(--primary); border-color: var(--primary); }
.current-date { font-size: 1.1rem; font-weight: 600; min-width: 150px; text-align: center; }
.today-badge { background: var(--primary); color: white; font-size: 0.7rem; padding: 2px 8px; border-radius: 10px; margin-left: 8px; }

.section-title { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 15px; text-transform: uppercase; letter-spacing: 1px; }

.goal-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; margin-bottom: 15px; }
.goal-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 15px; }
.goal-info h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.goal-type-badge { font-size: 0.75rem; color: var(--text-muted); background: var(--bg); padding: 3px 10px; border-radius: 20px; }
.goal-actions { display: flex; gap: 8px; }
.goal-action-btn { background: transparent; border: none; color: var(--text-muted); cursor: pointer; padding: 8px; font-size: 1.1rem; border-radius: 8px; }
.goal-action-btn:active { color: var(--text); background: var(--bg); }
.goal-action-btn.delete:active { color: var(--danger); }

.goal-input-area { display: flex; align-items: center; gap: 10px; margin-bottom: 15px; }
.time-input-wrapper { display: flex; align-items: center; gap: 8px; flex: 1; }
.time-input { background: var(--bg); border: 2px solid var(--border); color: var(--text); padding: 12px 15px; border-radius: 12px; font-size: 1.1rem; width: 100px; text-align: center; font-family: 'Outfit', sans-serif; font-weight: 600; }
.time-input:focus { outline: none; border-color: var(--primary); }
.time-label { color: var(--text-muted); font-size: 0.9rem; }
.time-target { color: var(--text-muted); font-size: 0.85rem; }

.status-display { display: flex; align-items: center; gap: 8px; min-width: 80px; justify-content: center; }
.status-circle { font-size: 2rem; }
.status-circle.success { color: var(--success); }
.status-circle.warning { color: var(--warning); }
.status-circle.danger { color: var(--danger); }

.bool-buttons { display: flex; gap: 10px; flex: 1; }
.bool-btn { flex: 1; padding: 15px; border: 2px solid var(--border); border-radius: 12px; background: var(--bg); color: var(--text); font-size: 1.5rem; cursor: pointer; }
.bool-btn:active { transform: scale(0.95); }
.bool-btn.selected-yes { background: var(--success); border-color: var(--success); }
.bool-btn.selected-no { background: var(--danger); border-color: var(--danger); }

.goal-stats { display: flex; gap: 20px; padding-top: 15px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.stat { display: flex; align-items: center; gap: 6px; }
.stat-icon { font-size: 1rem; }
.stat-value { font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--primary); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

.add-goal-btn { position: fixed; bottom: calc(30px + var(--safe-bottom)); right: 30px; width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), #FFB347); border: none; color: white; font-size: 2rem; cursor: pointer; box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4); z-index: 100; display: flex; align-items: center; justify-content: center; }
.add-goal-btn:active { transform: scale(0.95); }

.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.8); display: flex; align-items: center; justify-content: center; z-index: 1000; opacity: 0; visibility: hidden; transition: all 0.3s; padding: var(--safe-top) 20px var(--safe-bottom); }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 30px; width: 100%; max-width: 400px; max-height: 90vh; overflow-y: auto; transform: scale(0.9); transition: transform 0.3s; }
.modal-overlay.active .modal { transform: scale(1); }
.modal h2 { font-size: 1.3rem; margin-bottom: 25px; text-align: center; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 8px; }
.form-group input, .form-group select { width: 100%; padding: 12px 15px; background: var(--bg); border: 2px solid var(--border); border-radius: 12px; color: var(--text); font-size: 1rem; font-family: 'Noto Sans JP', sans-serif; }
.form-group input:focus { outline: none; border-color: var(--primary); }

.type-selector { display: flex; gap: 10px; }
.type-option { flex: 1; padding: 15px; background: var(--bg); border: 2px solid var(--border); border-radius: 12px; cursor: pointer; text-align: center; }
.type-option.selected { border-color: var(--primary); background: rgba(255, 107, 53, 0.1); }
.type-option .icon { font-size: 1.5rem; margin-bottom: 5px; }
.type-option .label { font-size: 0.85rem; color: var(--text-muted); }

.modal-buttons { display: flex; gap: 10px; margin-top: 25px; }
.modal-btn { flex: 1; padding: 15px; border-radius: 12px; border: none; font-size: 1rem; font-weight: 600; cursor: pointer; font-family: 'Noto Sans JP', sans-serif; }
.modal-btn:active { transform: scale(0.98); }
.modal-btn.cancel { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.modal-btn.submit { background: linear-gradient(135deg, var(--primary), #FFB347); color: white; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 4rem; margin-bottom: 20px; opacity: 0.5; }
.empty-state p { font-size: 1rem; margin-bottom: 10px; }

.history-controls { display: flex; gap: 10px; margin-bottom: 20px; }
.history-controls select { flex: 1; padding: 12px 15px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; color: var(--text); font-size: 0.95rem; font-family: 'Noto Sans JP', sans-serif; }

.period-selector { display: flex; align-items: center; justify-content: center; gap: 15px; margin-bottom: 25px; background: var(--bg-card); padding: 15px; border-radius: 16px; border: 1px solid var(--border); }
.period-label { font-size: 1.1rem; font-weight: 600; min-width: 120px; text-align: center; }

.view-mode-toggle { display: flex; background: var(--bg); border-radius: 10px; padding: 3px; margin-bottom: 20px; }
.view-mode-btn { flex: 1; padding: 10px 12px; background: transparent; border: none; color: var(--text-muted); font-size: 0.85rem; cursor: pointer; border-radius: 8px; font-family: 'Noto Sans JP', sans-serif; }
.view-mode-btn.active { background: var(--bg-card); color: var(--text); }

.calendar-container { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; margin-bottom: 20px; }
.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.calendar-title { font-size: 1rem; font-weight: 600; }
.calendar-legend { display: flex; gap: 12px; font-size: 0.75rem; color: var(--text-muted); }
.legend-item { display: flex; align-items: center; gap: 4px; }
.legend-dot { width: 12px; height: 12px; border-radius: 3px; }
.legend-dot.success { background: var(--success); }
.legend-dot.warning { background: var(--warning); }
.legend-dot.danger { background: var(--danger); }

.calendar-weekdays { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; margin-bottom: 10px; }
.weekday { text-align: center; font-size: 0.75rem; color: var(--text-muted); padding: 5px; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; }
.calendar-day { aspect-ratio: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 8px; background: var(--bg); cursor: pointer; }
.calendar-day:active { transform: scale(0.9); }
.calendar-day.empty { background: transparent; cursor: default; }
.calendar-day.empty:active { transform: none; }
.calendar-day .day-num { font-size: 0.7rem; color: var(--text-muted); margin-bottom: 1px; }
.calendar-day .day-status { font-size: 0.9rem; }
.calendar-day.success { background: rgba(46, 204, 113, 0.2); }
.calendar-day.warning { background: rgba(241, 196, 15, 0.2); }
.calendar-day.danger { background: rgba(231, 76, 60, 0.2); }
.calendar-day.today { border: 2px solid var(--primary); }

.year-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.month-card { background: var(--bg); border-radius: 12px; padding: 12px; }
.month-card-title { font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; text-align: center; }
.month-mini-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.mini-day { aspect-ratio: 1; border-radius: 2px; background: var(--border); }
.mini-day.success { background: var(--success); }
.mini-day.warning { background: var(--warning); }
.mini-day.danger { background: var(--danger); }

.history-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 20px; }
.history-stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; text-align: center; }
.history-stat-value { font-family: 'Outfit', sans-serif; font-size: 2rem; font-weight: 800; color: var(--primary); margin-bottom: 5px; }
.history-stat-label { font-size: 0.85rem; color: var(--text-muted); }

.install-banner { position: fixed; bottom: calc(100px + var(--safe-bottom)); left: 20px; right: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 15px 20px; display: none; align-items: center; gap: 15px; z-index: 99; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); }
.install-banner.show { display: flex; }
.install-banner-text { flex: 1; }
.install-banner-text strong { display: block; margin-bottom: 3px; }
.install-banner-text small { color: var(--text-muted); font-size: 0.8rem; }
.install-btn { background: var(--primary); color: white; border: none; padding: 10px 20px; border-radius: 10px; font-weight: 600; cursor: pointer; font-family: 'Noto Sans JP', sans-serif; }
.install-close { background: transparent; border: none; color: var(--text-muted); font-size: 1.2rem; cursor: pointer; padding: 5px; }

.settings-section { margin-bottom: 25px; }
.settings-section-title { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 15px; text-transform: uppercase; letter-spacing: 1px; }
.settings-item { background: var(--bg); border-radius: 12px; padding: 15px; margin-bottom: 10px; }
.settings-item-header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.settings-item-icon { font-size: 1.3rem; }
.settings-item-title { font-weight: 600; font-size: 1rem; }
.settings-item-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; line-height: 1.5; }
.settings-item-btn { width: 100%; padding: 12px; border-radius: 10px; border: none; font-size: 0.95rem; font-weight: 600; cursor: pointer; font-family: 'Noto Sans JP', sans-serif; }
.settings-item-btn:active { transform: scale(0.98); }
.settings-item-btn.primary { background: var(--primary); color: white; }
.settings-item-btn.secondary { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }
.settings-item-btn.danger { background: var(--danger); color: white; }

.hidden-input { display: none; }

.toast { position: fixed; bottom: calc(100px + var(--safe-bottom)); left: 50%; transform: translateX(-50%) translateY(100px); background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 15px 25px; font-size: 0.95rem; z-index: 2000; opacity: 0; transition: all 0.3s; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }

@media (max-width: 480px) {
  .header h1 { font-size: 1.6rem; }
  .goal-stats .stat { min-width: 45%; }
  .add-goal-btn { bottom: calc(20px + var(--safe-bottom)); right: 20px; width: 55px; height: 55px; }
  .year-grid { grid-template-columns: repeat(2, 1fr); }
  .history-stats { grid-template-columns: 1fr; }
  .calendar-legend { display: none; }
  .install-banner { left: 10px; right: 10px; }
}

.author-links { display: flex; gap: 10px; }
.author-link { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; padding: 15px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; color: var(--text); text-decoration: none; transition: all 0.2s; }
.author-link:active { background: var(--bg-card-hover); border-color: var(--primary); }
.author-link-icon { font-size: 1.2rem; }
.author-link-text { font-size: 0.95rem; font-weight: 600; }